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Page 2 of 3 Discussion The purpose of this agenda item is to share the Draft Feasibility Report, provide a general update of the preliminary scope, resident feedback, budget, and schedule for the project, and seek any direction the Council may wish to provide as staff finalizes the Feasibility Report and recommended special assessment roll. Following direction from City Council, an item will be prepared for the July 14, 2025 regular Council Meeting to accept the Feasibility Report and Order a Public Improvement Hearing anticipated to be held on July 28, 2025. City staff is requesting direction from the City Council related to proceeding with the design “alternative” to remove accumulated sediment at five delta locations and direction for the Karth Lake Pump System Improvement options. For the proposed sediment removal, review in detail within Attachment A Draft Feasibility Report, starting on Page 8, Accumulated Sediment Removal. In summary, this procedure is not a requirement of the City but would be considered maintenance. The bathymetric survey did identify sediment that could be removed. Removal operations would be difficult, costly, and very impactful to the properties needed for access. The design team discussed this procedure with Rice Creek Watershed District for funding opportunities, and they responded they currently do not fund maintenance-type procedures. For the proposed Karth Lake Pump System Improvements, review in detail within Attachment A Draft Feasibility Report, starting on Page 11. Three options are described, Option 2 would be staff’s recommendation with current known funding although staff also recommends exploring Rice Creek Watershed District’s interest in funding capacity with Option 3. If given direction to proceed with either the Karth Lake dredging work and/or the Karth Lake pump system improvements it would be planned to bid the project with these as bid “alternates”. This will allow flexibility to include or remove these work items from the project based on the actual prices bid by the contractor to complete the work. Moving forward with any of the “alternatives” will require a Professional Services Agreement amendment with Bolton & Menk to add the design scope to the project. Within the Feasibility Report (Attachment A) Page 17, Table 3 – Estimated Alternate Projects Costs, the values listed includes overhead which covers engineering services. Budget Impact From the proposed 2026-2030 CIP, the initial budget and cost estimate is summarized in the following table and will be revised as part of the feasibility report. This estimate includes the anticipated costs for engineering design, surveying, and construction administration as a 27% contingency, which is consistent with the PMP process dating back to 2021.